﻿// ConsoleTools
// Copyright (C) 2017-2024 Dust in the Wind
// 
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// 
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
// 
// You should have received a copy of the GNU General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

// --------------------------------------------------------------------------------
// Bugs or feature requests
// --------------------------------------------------------------------------------
// Note: For any bug or feature request please add a new issue on GitHub: https://github.com/lastunicorn/ConsoleTools/issues/new/choose

using System;
using System.Threading.Tasks;

namespace DustInTheWind.ConsoleTools;

/// <summary>
/// Contains a set of methods that help to write text to the Console.
/// </summary>
public static class Cursor
{
    /// <summary>
    /// Executes the specified action while hiding the cursor.
    /// </summary>
    /// <param name="action">The action to be executed.</param>
    public static void RunWithoutCursor(Action action)
    {
        if (action == null) throw new ArgumentNullException(nameof(action));

        bool initialCursorVisible = Console.CursorVisible;
        Console.CursorVisible = false;

        try
        {
            action();
        }
        finally
        {
            Console.CursorVisible = initialCursorVisible;
        }
    }

    /// <summary>
    /// Executes the specified function while hiding the cursor.
    /// </summary>
    /// <typeparam name="T">The type of the value to be returned.</typeparam>
    /// <param name="action">The function to be executed.</param>
    /// <returns>The value returned by the executed function.</returns>
    public static T RunWithoutCursor<T>(Func<T> action)
    {
        if (action == null) throw new ArgumentNullException(nameof(action));

        bool initialCursorVisible = Console.CursorVisible;
        Console.CursorVisible = false;

        try
        {
            return action();
        }
        finally
        {
            Console.CursorVisible = initialCursorVisible;
        }
    }

    /// <summary>
    /// Executes asynchronously the specified function while hiding the cursor.
    /// </summary>
    /// <typeparam name="T">The type of the value to be returned.</typeparam>
    /// <param name="action">The function to be executed.</param>
    /// <returns>A <see cref="Task{T}"/> instance representing the asynchronous execution.</returns>
    public static async Task<T> RunWithoutCursorAsync<T>(Func<Task<T>> action)
    {
        if (action == null) throw new ArgumentNullException(nameof(action));

        bool initialCursorVisible = Console.CursorVisible;
        Console.CursorVisible = false;

        try
        {
            return await action();
        }
        finally
        {
            Console.CursorVisible = initialCursorVisible;
        }
    }
}